IP Rotation Using Python and Stem and Tor Return Error

I want to do web scraping with ip rotation, I created this code using stem and tor

from stem import Signal
from stem.control import Controller
from selenium import webdriver
from selenium.webdriver.firefox.options import Options
from bs4 import BeautifulSoup

# signal TOR for a new connection 
def switchIP():    
    with Controller.from_port(port = 9051) as controller:         
        controller.authenticate()         
        controller.signal(Signal.NEWNYM)

# get a new selenium webdriver with tor as the proxy
def my_proxy(PROXY_HOST,PROXY_PORT):
    profile = webdriver.FirefoxProfile()
    # Direct = 0, Manual = 1, PAC = 2, AUTODETECT = 4, SYSTEM = 5
    profile.set_preference("network.proxy.type", 1)
    profile.set_preference("network.proxy.socks",PROXY_HOST)
    profile.set_preference("network.proxy.socks_port",int(PROXY_PORT))
    profile.update_preferences()
    #options = Options()
    #options.headless = True
    return webdriver.Firefox(firefox_profile=profile) 

# sends a request to https://whatsmyip.com/ so that we can check the IP of our request through our selenium webdriver
for x in range(10):
    proxy = my_proxy("127.0.0.1", 9050)
    proxy.get("https://whatsmyip.com/")
    html = proxy.page_source
    soup = BeautifulSoup(html, 'lxml')
    print(soup.find("span", {"id": "ipv4"}))
    print(soup.find("span", {"id": "ipv6"}))
    switchIP()

I already updated the torrc file by adding those 2 lines:

ControlPort 9051 
CookieAuthentication 1

when I run the code, it returns an error:

WebDriverException: Message: Reached error page: about:neterror?e=proxyConnectFailure&u=https%3A//whatsmyip.com/&c=UTF-8&f=regular&d=Firefox%20is%20configured%20to%20use%20a%20proxy%20server%20that%20is%20refusing%20connections.